I'm guessing none? because a rock is not living in the first place
Answer:
The pairs should be CI and B (Chorine and Boron)
Explanation:
Sorry if I am wrong...
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When fresh water and saltwater meet<span> in an estuary, they do not always mix very readily. Because </span>fresh water<span> flowing into the estuary is less salty and less dense than water from the ocean, it often floats on top of the heavier </span>seawater<span>.</span>
Answer:
Spanning 5 US states and 2 Canadian provinces, the Northern Great Plains is one of the largest prairie grasslands in the world. Despite habitat and species loss, opportunities exist to conserve and restore remaining large areas of this unique ecosystem.
Explanation:
